That's because they don't sell them in the US. The Yamaha oem fog lights are H7 Halogen bulbs, same as the headlights, and come with the full plug and play harness. You can sometimes find them on ebay or thru a Canadian dealer. US Yamaha dealers have been selling PIAA 530 kits that are nice LED lights, but don't come with a plug and play harness, you have to get the plug parts from Eastern Beaver.
As you can see from this thread, there are a metric ton of choices for lights.
www.LEDRider.com sells good quality Chinese imports, (he imports them directly and his customer service is top notch). There are lots of other good sellers too. I have an older set of the square Long Range Optimus LED lights in 10º spot that are sold from various vendors, got them here:
http://www.cyclopsadventuresports.com/dual-sport-bike-lights.html w/o any dimming BS, just the lights and harness. I wired it to my high beams and an inline toggle switch so I could have them off if desired during high beam use. They have had zero problems and just worked for ~60k miles or so, including Alaska/Yukon and an IBR. I run them on KC Highlites mounts
http://www.kchilites.com/accessories/light-mounts/universal-tube-clamp-mounting-brackets.html that are sold individually for <$20 each. Very solid. Mounted to my Rumbux crash bars.
Eric- Can the Rigid sr 6" be mounted under the headlights with Runbux bar in place? I was going to notch the OE supports to mount the light bar but just realized I have your Rumbux bar set up....
-NPJ
Lights are about how you want to use them. Do you want to see better, or be seen? Most HID aux lights are useless in traffic because they are simply too bright and have no cut off. I do run a DOT legal HID light as well, but it's no longer sold. (Xenarc 1010) Some of the self contained HID lights are very bright, and pretty heavy too. Consider that when you look at how you will mount them.
Install an Eastern Beaver Aux. Fuse block and you won't have any problems installing lights cleanly. No relay needed for LED lights in most cases. Just power, ground and a switch and most instructions that come with the lights will get you there w/o hassle.